Bottle closure



April 19,1927. 1,625,617 7 D. LUKENS BOTTLE CLOSURE Filed Feb. 23. 1924 finae/n Cwar: 211/2205.

a yd". WAW a) ///5 i/fa/v gy Patented Apr. 19, 1927.

N TED? $2TAT 5 BOTTLE oLosuRE."

Application filed February 23, 1924. Serial No. 694,698.

This invention relates to closures for bottles and similar vessels.

One of the objects of this invention is to provide a bottle closure which shall be capable of completely sealing the bottle opening against the escape of vapors, liquids and solids.

Another object of this invention is to provide such a closure which shall be cheap and simple to manufacture and efficient in service.

Further objects will appear from the detail description taken in connection with the accompanying drawing which represents a cross-sectional view of a bottle provided with a closure embodying this invention.

Referring to the accompanying drawing, 1 designates the body of the bottle which may be constructed of vitreous material, such as glass, or such material as will not be affected by the contents which the bottle is intended to hold. The bottle may be provided with a neck 2 having an opening 3 and provided at its end with a finished rim 4. The rim 4 may be finished by processes well known in the bottle making art so as to have a smooth, and uniform surface which may be slightly convexed as shown in the drawing.

The rim 4 provides a seat for a closing cap 5 of soft, pliable metal, such as tin, or the like, which may be pressed down upon the rim 4 so as to make intimate contact therewith to prevent the escape of vapors. The bottle neck may be provided with an external thread 6 and a clamping cap 7, having threads 8 adapted to engage the threads 6 on the bottle neck, may be provided to clamp the cap 5 down upon the rim 4. The cap 7 may be provided with corrugations on its outer surface in a well known manner so as to provide for firmly gripping the same in screwing it on or off. The cap may further be provided with an annular enlargement 9 at its upper rim and the cap 5 may be loosely confined within this enlarged portion. The cap 5 being of soft metal may easily be sprung into this enlargement so as to be retained therein.

The cap 5 being soft and pliable will be firmly pressed down upon the finished rim 4 when the cap 7 is screwed down upon it. The material of the cap 5 being soft will flow under the pressure of the cap 7 so as to fill all the interstices of the surface of the rim 4, forming thereby a gasket to her- CLARENCE n. LUKENS, oFQ- ST, flours, ivirssounr, 1,

metically seal the bottle opening. The bottle is thus effectively sealed against the escape of vapors when used for storing volatile liquids, such as ether, chloroform, and the like. In special cases, the cap 5 may be constructed of such material as ,will not be acted upon chemically by the substance stored in the bottle so that the seal once made will be permanent. The cap 5, therefore, forms its own gasket and the cap 7 being screwed down upon it will by its rotary motion have the effect of wiping the gasket thoroughly into intimate contact with the rim 4 to provide a thoroughly effective seal. Upon removal of the cap 7, the cap 5 will be removed therewith and retained therein by its engagement with the enlarged portion 9. The closure is thus ready to be re-applied as soon as it becomes necessary to. again close the bottle. At each closure the cap 5 being loose in the cap 7 may find its own seat on the rim 4 and then be firmly screwed thereagainst, and wiped into contact therewith by screwing up the cap 7.

It is obvious that various changes may be made in details of construction without departing from the spirit of this invention; it is, therefore, to be understood that this invention is not to be limited to the specific details shown and described.

Having thus described the invention, what is claimed is:

1. A bottle having the open end thereof provided with a finished rim, 9. cap of soft pliable and compressible metal adapted to close the open end and engage said rim, and a screw clamp adapted to apply pressure to said cap in order to firmly seat the same on said rim so that the rim will sink into the cap metal, whereby said cap is compressed and ironed on said rim to form its own gasket and seal the bottle.

2. A bottle having the open end thereof provided with a finished rim, a cap of soft pliable and compressible metal adapted to close the open end and engage said rim, and a screw clamp loosely engaging and adapted to apply pressure to said cap in order to firmly seat and secure the same on said rim so that the rim will sink into the cap metal, whereby said cap is compressed pliable and compressible met-a1 adapted to close the open end and engage said rim, and a capping clamp having a screw connection with the bottle end and in which said cap is mounted, adapted to apply pressure to said cap in order to seat and secure the same on said rim so that the rim will sink into the cap metal, whereby said cap is compressed and ironed on said rim to form its own gasket and seal the bottle.

I11 testimony whereof I affix my signature this th day of February, 1924.

CLARENCE D. LUKEN S. 

